01Weather
New York City weather in September
Afternoons in September average 26.0 °C (79 °F) and nights cool to 18.9 °C (66 °F). The month brings about 95 mm (3.7 in) of rain spread over roughly 6 days. Compared with August it is 3.3 °C cooler; October is 5.7 °C cooler again.
What the averages hide
| In a typical September | Value | What it means |
|---|---|---|
| Warm afternoons (90th percentile) | 31 °C / 87 °F | one day in ten is at least this warm |
| Cool afternoons (10th percentile) | 21 °C / 70 °F | one day in ten stays below this |
| Cold nights (10th percentile) | 15 °C / 59 °F | one night in ten is colder than this |
| Days above 30 °C (86 °F) | 4.7 | per month, average 2016–2025 |
| Nights at or below 0 °C (32 °F) | 0.0 | frost mornings per month |
| Days with snow cover | 0.0 | snow depth ≥ 1 cm, per month |
| Chance of rain on any given day | 21 % | at least 1 mm |
| Hottest / coldest September day 2016–2025 | 34.4 °C / 10.1 °C | extremes in the ten-year record |
02Daylight
Sunrise, sunset and the length of the day
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 1 September | 06:23 | 19:28 | 13.1 h |
| 15 September | 06:36 | 19:05 | 12.5 h |
| 30 September | 06:51 | 18:40 | 11.8 h |
Daylight shrinks by about 78 minutes over the month. Times are local (America/New_York).
03Crowds
How busy New York City is in September
busy The main sights are busy in September. What drives it:
- US Open finals
- UN General Assembly week
- Fashion Week
- Labor Day
04Public holidays
Public holidays in September 2027
| Date | Holiday |
|---|---|
| 6 Sep 2027 | Labour Day |
On public holidays many shops close and museums run on Sunday hours; check opening times for the day before and after as well.
05Events
What's on in New York City in September
Every year in September
| Event | When | Type |
|---|---|---|
| Feast of San Gennaro | mid-September, Little Italy | festival |
07Packing
What to pack for New York City in September
- light, breathable clothing
- sun hat and sunscreen
- refillable water bottle
- a compact umbrella for occasional showers
- something for heat: 5 days a month pass 30 °C on average
08Editor's notes
What the numbers don't tell you
September is the city's finest month: warm days around 25 °C, cool nights, clear skies, the US Open finals in the second week and Fashion Week. UN General Assembly week in the third week snarls Midtown traffic and fills hotels at the year's highest rates. The Feast of San Gennaro takes over Mulberry Street for eleven days in mid-September. Labor Day marks the end of beach season. Rain falls on about eight days.
The West Indian Day Parade on Labor Day in Brooklyn draws a million people. The Brooklyn Book Festival and the opening of the Met Opera and the Philharmonic seasons follow. Daylight drops from thirteen to twelve hours. Hotel rates outside UN week are high but below October's peak. For the crisp air, fall colour and the Halloween Parade, see October.
09Compare
New York City month by month
| Month | High | Low | Rain days | Sun h | Crowds | Verdict |
|---|---|---|---|---|---|---|
| January | 5 °C | -1 °C | 8 | – | moderate | Good |
| February | 8 °C | 1 °C | 9 | – | quiet | Good |
| March | 11 °C | 3 °C | 8 | – | moderate | Good |
| April | 16 °C | 8 °C | 8 | – | busy | Good |
| May | 22 °C | 13 °C | 9 | – | busy | Excellent |
| June | 27 °C | 19 °C | 9 | – | very busy | Good |
| July | 31 °C | 23 °C | 8 | – | very busy | Mixed |
| August | 29 °C | 22 °C | 8 | – | busy | Excellent |
| September | 26 °C | 19 °C | 6 | – | busy | Excellent |
| October | 20 °C | 13 °C | 7 | – | busy | Excellent |
| November | 13 °C | 6 °C | 7 | – | very busy | Mixed |
| December | 8 °C | 1 °C | 10 | – | very busy | Off-season |
Not sure about September? See the best time to visit New York City.
10Elsewhere
September in nearby cities
| City | High | Rain days |
|---|---|---|
| Toronto in September | 23 °C | 8 |
| Orlando in September | 32 °C | 9 |
| Miami in September | 32 °C | 15 |
| Cancún in September | 32 °C | – |
| Las Vegas in September | 35 °C | 0 |
| Vancouver in September | 20 °C | 9 |
11FAQ
New York City in September: your questions
Is September a good time to visit New York City?
September is one of the best months to visit New York City. Daytime highs average 26 °C (79 °F), rain falls on about 6 days, and hotel arrivals run above the yearly average, so the main sights are busy.
What is the weather like in New York City in September?
Expect warm days around 26 °C (79 °F) and nights near 19 °C (66 °F). One September in ten brings afternoons above 31 °C, and one in ten stays below 21 °C.
Does it rain a lot in New York City in September?
September brings about 95 mm (3.7 in) of rain over roughly 6 days, which is fairly dry by New York City standards. On any given day the chance of at least 1 mm of rain is 21 percent.
What should I wear in New York City in September?
Pack light, breathable clothing, sun hat and sunscreen, refillable water bottle.
Is New York City crowded in September?
The main sights are busy in September. Main drivers: US Open finals; UN General Assembly week; Fashion Week.
What time does it get dark in New York City in September?
Around the middle of September the sun sets at about 19:05 and rises at 06:36, giving 12.5 hours of daylight.